I actually found www.pipes.digital in my mind map with a comment to the effect that it's a Yahoo! pipes replacement - so I come across it a year ago in fact.
I'm sticking to Node-RED simply because that's what I know - also its open source and very extendable, so that's why its my cup of tea.
EDIT: Pipes is also open source --> https://github.com/pipes-digital/pipes --> sorry didn't see that.